Modification of magnetocrystalline anisotropy via ion-implantation

Lee, Michael S.; Chopdekar, Rajesh V.; Shafer, Padraic; Arenholz, Elke; Takamura, Yayoi

doi:10.1063/1.5134867

Title: Modification of magnetocrystalline anisotropy via ion-implantation

Abstract

The ability to systematically modify the magnetic properties of epitaxial La_0.7Sr_0.3MnO₃ thin films is demonstrated through the use of Ar⁺ ion implantation. With increasing implant dose, a uniaxial expansion of the c-axis of the unit cell leads to a transition from in-plane toward perpendicular magnetic anisotropy. Above a critical dose of 3 × 10¹³ Ar⁺/cm², significant crystalline disorder exists leading to a decrease in the average Mn valence state and near complete suppression of magnetization. Combined with lithographic techniques, ion implantation enables the fabrication of magnetic spin textures consisting of adjacent regions with tunable magnetic anisotropy in complex oxide thin films.

Authors:

^[1];

^[2];

^[3]; Arenholz, Elke ^[4];

^[1]

Univ. of California, Davis, CA (United States)
Univ. of California, Davis, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS); Cornell Univ., Ithaca, NY (United States). Cornell High Energy Synchrotron Source

Publication Date:: Wed Apr 01 00:00:00 EDT 2020

Research Org.:: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Sponsoring Org.:: USDOE Office of Science (SC); National Science Foundation (NSF); Directorate for Mathematical & Physical Sciences

OSTI Identifier:: 1631648

Alternate Identifier(s):: OSTI ID: 1607957

Grant/Contract Number:: AC02-05CH11231; DMR 1411250; 1745450

Resource Type:: Accepted Manuscript

Journal Name:: AIP Advances

Additional Journal Information:: Journal Volume: 10; Journal Issue: 4; Journal ID: ISSN 2158-3226

Publisher:: American Institute of Physics (AIP)

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Citation Formats


                    Lee, Michael S., Chopdekar, Rajesh V., Shafer, Padraic, Arenholz, Elke, and Takamura, Yayoi. Modification of magnetocrystalline anisotropy via ion-implantation.  United States: N. p., 2020. 
Web.  doi:10.1063/1.5134867.

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                    Lee, Michael S., Chopdekar, Rajesh V., Shafer, Padraic, Arenholz, Elke, & Takamura, Yayoi. Modification of magnetocrystalline anisotropy via ion-implantation.  United States.  https://doi.org/10.1063/1.5134867

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                    Lee, Michael S., Chopdekar, Rajesh V., Shafer, Padraic, Arenholz, Elke, and Takamura, Yayoi. Wed .  
"Modification of magnetocrystalline anisotropy via ion-implantation".  United States.  https://doi.org/10.1063/1.5134867.  https://www.osti.gov/servlets/purl/1631648.

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@article{osti_1631648,

  title        = {Modification of magnetocrystalline anisotropy via ion-implantation},

  author       = {Lee, Michael S. and Chopdekar, Rajesh V. and Shafer, Padraic and Arenholz, Elke and Takamura, Yayoi},

  abstractNote = {The ability to systematically modify the magnetic properties of epitaxial La0.7Sr0.3MnO3 thin films is demonstrated through the use of Ar+ ion implantation. With increasing implant dose, a uniaxial expansion of the c-axis of the unit cell leads to a transition from in-plane toward perpendicular magnetic anisotropy. Above a critical dose of 3 × 1013 Ar+/cm2, significant crystalline disorder exists leading to a decrease in the average Mn valence state and near complete suppression of magnetization. Combined with lithographic techniques, ion implantation enables the fabrication of magnetic spin textures consisting of adjacent regions with tunable magnetic anisotropy in complex oxide thin films.},

  doi          = {10.1063/1.5134867},

  journal      = {AIP Advances},

  number       = 4,

  volume       = 10,

  place        = {United States},

  year         = {Wed Apr 01 00:00:00 EDT 2020},

  month        = {Wed Apr 01 00:00:00 EDT 2020}

}

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https://doi.org/10.1063/1.5134867

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Cited by: 5 works

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Figures / Tables:

FIG. 1: . (a) (002) Experimental ω–2θ scans (colored lines) and GID_sl fits (black lines) for implanted LSMO films on STO substrates. Labels correspond to the implantation dose in Ar/cm². Film and substrate peaks are denoted with “f” and “s,” respectively. (b) Maximum c/a ratio for LSMO films on differentmore »

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Figures / Tables found in this record:

FIG. 1 (p. 3)

FIG. 2 (p. 4)

FIG. 3 (p. 5)

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Title: Modification of magnetocrystalline anisotropy via ion-implantation

Abstract

Citation Formats

Figures / Tables:

Hidden Magnetic Configuration in Epitaxial La 1 − x Sr x MnO 3 Films journal, December 2010

Effects of oxygen content on the structural and transport properties in epitaxial thin films journal, July 2012

Considerations on Double Exchange journal, October 1955

Tuning Perpendicular Magnetic Anisotropy by Oxygen Octahedral Rotations in ( La 1 − x Sr x MnO 3 ) / ( SrIrO 3 ) Superlattices journal, August 2017

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Perpendicular magnetic anisotropy via strain-engineered oxygen vacancy ordering in epitaxial L a 1 − x S r x Co O 3 − δ journal, November 2018

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Magnetoelectric effects in bilayers and multilayers of magnetostrictive and piezoelectric perovskite oxides journal, March 2002

Direct evidence of gradient Mn(II) evolution at charged states in LiNi0.5Mn1.5O4 electrodes with capacity fading journal, January 2015

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Uniaxial lattice expansion of self‐ion‐implanted Si journal, July 1990

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Interaction between the d -Shells in the Transition Metals. II. Ferromagnetic Compounds of Manganese with Perovskite Structure journal, May 1951

Soft-x-ray magnetic circular dichroism at the L 2 , 3 edges of nickel journal, October 1990

Tuning Magnetic Domain Structure in Nanoscale La 0.7 Sr 0.3 MnO 3 Islands journal, June 2006

Magnetic patterning by means of ion irradiation and implantation journal, February 2008

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Magnetic skyrmions: advances in physics and potential applications journal, June 2017

Experimental realization of two-dimensional artificial skyrmion crystals at room temperature journal, November 2014

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SRIM – The stopping and range of ions in matter (2010) journal, June 2010

Planar Patterned Magnetic Media Obtained by Ion Irradiation journal, June 1998

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X-PEEM study of antiferromagnetic domain patterns in LaFeO3 thin films and embedded nanostructures journal, October 2012

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Designing Magnetic Anisotropy through Strain Doping journal, October 2018

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Hidden Magnetic Configuration in Epitaxial ${La}_{1 - x} {Sr}_{x} {MnO}_{3}$ Films
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Effects of oxygen content on the structural and transport properties in epitaxial thin films
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Considerations on Double Exchange
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Tuning Perpendicular Magnetic Anisotropy by Oxygen Octahedral Rotations in $({La}_{1 - x} {Sr}_{x} {MnO}_{3}) / ({SrIrO}_{3})$ Superlattices
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Strain-dependent magnetic phase diagram of epitaxial La0.67Sr0.33MnO3 thin films
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Magnetic and transport properties of radiation damaged La0.7Ca0.3MnO3.0 thin films
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Sensitive Technique for Studying Ion‐Implantation Damage
journal, June 1971

Creating an Artificial Two-Dimensional Skyrmion Crystal by Nanopatterning
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Uniaxial lattice expansion of self‐ion‐implanted Si
journal, July 1990

Perpendicular recording media for hard disk drives
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X-ray magnetic circular dichroism—A versatile tool to study magnetism
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journal, May 1951

Soft-x-ray magnetic circular dichroism at the $L_{2, 3}$ edges of nickel
journal, October 1990

Tuning Magnetic Domain Structure in Nanoscale La _0.7 Sr _0.3 MnO ₃ Islands
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Strain Doping: Reversible Single-Axis Control of a Complex Oxide Lattice via Helium Implantation
journal, June 2015

Magnetic skyrmions: advances in physics and potential applications
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Experimental realization of two-dimensional artificial skyrmion crystals at room temperature
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Conductivity, magnetoresistance, and specific heat of oxygen-deficient La0.67Sr0.33MnO3−α (0≤α≤0.16)
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X-PEEM study of antiferromagnetic domain patterns in LaFeO3 thin films and embedded nanostructures
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